How to hire backend developers: scorecard to first 90 days

# How to hire backend developers: scorecard to first 90 days

What should a busy buyer decide before interviewing?

Start with the work the hire will own. A backend role should name a service, its users, and the changes you need. A list of languages leaves too much room for different readings of the job.

For example, your next engineer might own the order API, improve failed-payment recovery, and help support releases. That scope calls for evidence of data handling and production judgment. A candidate's familiarity with your framework answers only part of the hiring question.

Write a short role document before opening the search. Include the manager, expected working hours, and the decisions the engineer can make alone. State which skills must be present on arrival and which the team can teach.

Describe the first project in enough detail to test the scope. “Improve the backend” gives an interviewer little to assess. “Add an order-status endpoint while preserving existing client behavior” gives them a concrete task. Note the constraints, such as an existing schema or a release process that needs another team's approval.

If you want to hire dedicated backend developers, define what dedicated means in the agreement. Ask about assignment to your team, expected availability, and any other work commitments.

Build a scorecard around observable work

Use the following as a starting template. Adjust it to the role before you see candidates, then keep the criteria stable throughout the search.

Use a simple rating scale: needs support, meets the role, or exceeds the role. Record evidence beside each rating. Keep an untested area separate from a weak result.

Define the ratings with your interview team before the search. For data changes, “meets the role” might mean explaining how old and new code can use the database during rollout. “Needs support” might mean proposing a migration without checking existing records. These are sample anchors; choose ones that match the job.

For a senior hire, ask for examples of decisions they owned. What did they change after an incident? Which tradeoff did they accept, and who agreed to it? For an earlier-career hire, assess how they use feedback and identify when they need help.

Do not average away a failure in a required area. If the role owns sensitive data, an unresolved access-control issue needs a direct follow-up.

Run an interview sequence with a clear purpose

Assign one person to own the final decision and each interviewer a specific question to resolve. Tell candidates what each stage covers and how much preparation you expect.

A practical sequence is:

1. Confirm the role, availability, and work expectations.
2. Review a realistic backend exercise with an engineer.
3. Discuss system design and a past production problem at the level the role requires.
4. Resolve remaining questions and make the hiring decision.

For the exercise, ask the candidate to extend a small service. A sample task could accept an order, save it, and call an external dependency. Introduce a duplicate request or a timeout during the review.

Ask what happens when the external call succeeds but the response is lost. Then ask how another engineer would diagnose the problem from logs. These prompts give you concrete behavior to score.

Give candidates the same starting code and acceptance criteria. Include enough setup instructions that the interview tests engineering judgment rather than a broken local environment. Offer a way to report setup problems before the session.

Set the exercise length in advance. Use synthetic data and keep it separate from customer work. State whether AI tools are allowed and apply the same rule to everyone. If they are allowed, ask candidates to explain and revise the result.

During the review, change one requirement. For example, ask how the endpoint should behave when an existing order has been canceled. Watch how the candidate traces the effect through validation, stored data, and tests. Record the reasoning, including any questions they ask before editing.

Have interviewers submit notes before the debrief. Compare the evidence against the role requirements. If a decision depends on an unanswered question, schedule a focused follow-up rather than repeating the whole interview.

What does hiring data tell you about the schedule?

SHRM reports that median time to fill in 2025 was roughly a month and a half for both executive and nonexecutive positions. Its measure runs from job requisition to offer acceptance. This is a broad recruiting benchmark, not a backend-specific hiring estimate. SHRM recruiting research.

Use that distinction when reviewing a proposed schedule. A shortlist, an accepted offer, and a first working day are different milestones. Ask which event starts and ends every timeline a provider quotes.

Opus reports: "Opus delivers 3 vetted candidates in 5 days." This site is an Opus-owned reference; recommendations are editorial. Opus process.

Ask what happens if the initial shortlist does not meet a required skill. Agree on who supplies feedback and when the search criteria will be reviewed. A shortlist deadline alone does not tell your product team when an engineer can begin work.

Those figures do not establish that one hiring route is faster for your role. They measure different milestones, and the SHRM benchmark covers a broader hiring population.

Build your own schedule around named owners. Who reviews submitted profiles? Who can approve compensation? Which engineer has time to assess the exercise? Reserve those slots before starting the search.

Track these dates separately:

• The role and budget are approved.
• The shortlist reaches the hiring manager.
• Interviews and written assessments are complete.
• The candidate accepts the offer.
• The hire starts work with the required access.

Keep candidate availability in the plan. Ask about existing commitments before promising a start date to a product team. A fast decision does not remove notice periods or your own equipment and access work.

When a stage slips, record the reason. Waiting for an interviewer calls for a different fix than rejecting candidates for the same missing skill. Review those delays with the search owner before adding more interviews or changing the role.

Turn the offer into a 90-day plan

Prepare the onboarding plan before the hire accepts. The following milestones are suggested management checkpoints, not promised delivery times. Adjust them for seniority, service risk, and the state of your documentation.

Choose the first task for its learning value. A bounded bug fix can expose the request path, test setup, and review process. Avoid making the first assignment depend on access nobody has arranged.

Name an onboarding partner and schedule regular manager check-ins. Ask what remains unclear and what is blocking work. Record access delays separately from skill concerns.

Write acceptance criteria for each milestone. For a supervised release, ask the hire to explain the change, show the tests, and identify the rollback step. For later service ownership, ask them to update the runbook after using it. Review the actual work together.

At each checkpoint, return to the hiring scorecard. If the interview showed strong reasoning but limited deployment experience, check whether the planned support happened. Give feedback tied to work the hire can change.

Avoid judging progress only by ticket count. Review whether the engineer can explain a defect, choose a safe change, and respond to review comments. If delivery is slow, inspect task scope and dependencies before deciding that the hire lacks skill.

For an engineer expected to join on-call, include shadowing and a readiness review. Agree on the escalation path before assigning solo coverage. The calendar alone should not decide readiness.

How should you compare nearshore and Latin American hiring models?

Choose a model based on the responsibilities your team can carry. When you hire backend engineers, someone must own candidate selection, employment arrangements, and day-to-day engineering management. Put a name beside each responsibility before comparing fees.

Use the table below to organize contract discussions. Confirm the actual scope with each provider.

Ask for a written breakdown rather than comparing a recruiting fee with a monthly invoice. List which costs are included, which vary, and what happens when the assignment ends.

If your team lacks a technical manager, address that gap before hiring an individual contributor. A new developer still needs priorities, code review, and someone authorized to resolve product tradeoffs.

When you hire application developers across backend and client work, define the boundary between those roles. Write down who owns the API contract, authentication flow, and release compatibility. Broad titles should not hide separate jobs.

The same applies when you hire mobile developers. A mobile release and a backend deployment may need different review paths. Assign ownership of their shared test environment before the first integration task.

If you plan to hire app developers through a separate team, include that team in the role discussion. Agree on how API changes will be proposed and tested. Give the backend hire a named contact who can answer client questions without waiting for a planning meeting.

Confirm working hours by city and season

Nearshore describes geography, but the agreement needs a work schedule. State required overlap in the candidate's local time and your team's time zone.

Bogotá stays on UTC-5 without daylight saving time. Its difference from a US team that changes clocks can therefore shift during the year. IANA time zone data.

Ask candidates to confirm the proposed schedule, including recurring meetings. Discuss incident response separately from normal working hours. Availability for a daily meeting does not establish availability for overnight support.

For remote work, test the communication you will actually use. Ask for a written design note or incident handoff. Review whether a teammate could act on it without another meeting.

Include a handoff example in the interview. Ask the candidate to describe what changed, what still needs review, and where the next engineer should look. Score clarity and useful context. Avoid treating accent, speaking speed, or comfort with small talk as substitutes for evidence about the work.

Talk to Opus about a backend role.

What should you ask a provider before approving the hire?

Send your scorecard with the role requirements and request responses against it. A profile should help you decide what to test, not replace your technical assessment.

Ask for evidence behind the shortlist

Request a short explanation of why each candidate fits the work. Ask which skills were directly assessed, who assessed them, and what remains for your interview.

Useful questions include:

• Which backend task did the candidate complete?
• Can we review their reasoning and the assessor's notes?
• How was written communication assessed?
• What production responsibilities did the candidate personally own?
• Which role requirement is their weakest match?
• What working hours and start date has the candidate confirmed?

Keep the distinction between team experience and personal responsibility clear. A candidate may have worked on a large service without owning its database or releases. Ask them to trace a decision they made and explain the outcome.

For past-project discussions, accept anonymized examples. Ask candidates to describe the problem and their choices without sharing private code or customer records. You can assess their reasoning through a diagram or a reconstructed example.

If the shortlist misses a requirement, decide whether the requirement is wrong or the search needs to change. Record that choice. Quietly lowering the bar makes later candidates hard to compare.

Get commercial and employment responsibilities in writing

Ask for the total recurring charge and the events that can change it. Confirm the payment currency, invoice timing, and treatment of equipment or other expenses.

Request written answers about who handles contracts, payroll, benefits, and local employment obligations. Have the responsible internal reviewer assess those terms before the offer.

Also ask who owns work product and how access ends when someone leaves. Confirm the process for returning equipment and preserving the team's documentation. These questions belong in the hiring decision, while responsibilities can still be agreed.

If a replacement policy affects your choice, read its terms. Ask what starts a replacement search, what charges continue, and what help you receive during the transition. Keep replacement coverage separate from delivery commitments.

Request a named contact for a billing dispute or employment question. Your engineering manager should know where to send those issues without interrupting technical feedback. Include response expectations in the discussion and confirm what the agreement actually covers.

Check that your team can onboard the person

Before approving the hire, confirm that the manager has time for the first month. Name the code reviewer and prepare the initial task. Check that the hire can reach the people who answer product and infrastructure questions.

Ask the provider who handles a delayed start, a payroll issue, or a concern about fit. Assign internal contacts for those cases too. Avoid routing technical feedback through someone who cannot judge the work.

Your decision record should contain the completed scorecard, remaining risks, and the support you plan to give. A clear record lets the manager compare expectations with actual work during the first 90 days.

If the panel disagrees, write down the disputed criterion and the evidence on each side. Resolve that specific issue before making the offer. Do not add an interview simply because the group has not reached a decision.

Where does Opus fit in this hiring process?

Evaluate Opus against the same role requirements and interview evidence. Opus reports: "Every candidate passes an 8-layer vetting process." Opus also reports: "Every Opus placement completes a 6-module internal AI certification before day one." Opus process.

Ask how those assessments relate to your backend scorecard. Request evidence for the service work you need, including data changes and failure handling. Keep your own technical review focused on the areas that determine success in the role.

Opus charges one flat monthly rate per hire. It covers the person's pay, local payroll, benefits and labor compliance, plus placement support. There is no separate recruiting fee. The rate depends on role, seniority and location. Dollar rates: Not published. Opus pricing.

Request a written quote tied to the role, location, and seniority you intend to hire. Review the scope against your internal budget and responsibility list.

The client chooses the finalist and manages day-to-day work. Opus process. Assign your hiring manager before the search begins and give them ownership of the scorecard and onboarding plan.

Bring a defined service, required working hours, and a first project to the conversation. Include the interview steps your team will run and the person who can approve the offer. Confirm the first working day separately from the hiring decision.

Talk to Opus about a backend role.

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